Donovan writes:
I've been working with mapscript and tomcat for several weeks, generally
mapserver is working great but when i try to query a layer (tried a polygon
shp file, polygon tab file and a point tab file) the jvm crashes as soon as
getFeature is called. QueryByPoint and getResults appear to work - i can
iterate over the resultset and print shape indexes but getFeature always
crashes with this message:
*** glibc detected *** free(): invalid pointer: 0x093f6e30 ***
15/11/2005 10:48:04 11023 jsvc.exec error: Service did not exit cleanly
Any ideas? I'm really stuck...
Following is a snip of the code and some more detail:
layer.queryByPoint(map,point,mapscriptConstants.MS_MULTIPLE,-1);
resultCacheObj results = layer.getResults();
layer.open();
for (int i=0;i<results.getNumresults();i++) {
resultCacheMemberObj result = results.getResult(i);
shapeObj feature =
layer.getFeature(result.getShapeindex(),result.getTileindex());
}
f.realLayer.close();
I'm using mapserver 4.8.0 but also tried 4.6.0 - same results
I compiled mapserver myself with these flags
--with-gdal --with-ogr --with-postgis --with-proj --with-threads --with-png
--with-geos --with-gd --enable-debug
gdal-1.2.6, proj-4.4.9 and geos-2.1.1 were installed using RPMs from
mappinghacks.com
JDK 1.5.0_05
Tomcat 5.0
Fedora core 3
I tried loading the jvm in GDB but it don't have the skill to track down the
source of the memory corruption.
Searched the list, google and the documentation with no success...
Donovan,
This isn't going to help a whole lot but I know this came up before but I
think the result is in the new archives and the search doesn't work.
Someone should remember posting that error before - if you don't receive
anything try submitting with the error as the subject line and that may
catch the needed eye.
Lowell
